Frederick a



(No Model.)

P. A. STOHLMANN.

STOMAGH PUMP.

No. 340,739. Patented Apr. 27, 1886.

N. PETERS. Photo-Lithngnphen Washington, 0. c.

UNITED STATES PATENT Orrrca.

FREDERICK A. STOIILMANN, OF BROOKLYN, ASSIGNOR TO GEORGE TIEMANN & OO.,OF NEW YORK, N. Y.

STOMACH-PUMP.

SPECIFICATION forming part of Letters Patent No, 340,739, dated April2"], 1886.

Application filed January 2, 1886. Serial No. 187,333. (Nomodehl To allwhom it may concern.-

Be it known that I, FREDERICK A. S'rorIL- MANN, of Brooklyn, in thecounty of Kings and State of New York, have invented a new and usefulImprovement in Exhausting and Forcing Apparatus for Stomach-Pumps, &c.,of which the following is a specification.

My invention relates to an exhausting and forcing apparatus forstomach-pumps, 850.,

[O that is adapted to injecting into the stomach or other place anydesired liquid from the receptacle in which it is held, and also toexhausting from the stomach or other place, whatever the contents maybe, and discharg I 5 ing the same into a suitable receptacle.

My invention consists of an exhausting and forcing apparatus composed ofa suction and forcing bulb of rubber connected to a circular disk orvalve base, and having openings and valves working in oppositedirections. The rubber tube to be placed into the stomach and the rubbertube to be placed into a receptacle are both connected to a circulardisk, and this disk is held against the surface of the afore- 2 5 saidvalve-disk by a central connecting-screw or similar fastening in suchmanner that if the tube'disk is held in one hand and the forcingbulbturned by the other hand, or vice versa, a half-revolution, the positionof the valves 0 in their relation to the two tubes is reversed, so as toenable the user to inject liquid into the stomach from a basin orreceptacle, or to exhaust the contents of the stomach and discharge thesame into the basin.

5 In the drawings, Figure 1 is an elevation,

partially in section, of my improved exhausting and forcing apparatus.Fig. 2 is a plan of the upper surface of the valve-disk. Fig. 3 is aninverted plan of the under surface of the valve-disk; and Fig. 4 is aplan of the tubedisk.

A is the rubber exhausting and forcing bulb; B, the valve-base; C, thetube-disk; D, the stomach-tube, and E the tube, upon the 5 end of whichis the usual cup, 1, adapted to being placed in a liquid-holding basinor receptacle.

The bulb A and rubber tubes D and E are of the usual character.

The bulb A and valve-base B are firmly connected by wiring or tying themouth of the former around the periphery of the valve-base.

The valve-base B is preferably made of hard rubber, although other1naterialssuch as metal, celluloid, or woodmight be used, and 5 saidbase is made with the passageways a I) through it, and a valve, a,secured to and seated upon the upper surface of the base, and the valved secured within a valve-chamber in said base and seated against anunder surface, 2.

The valves 0 and d are preferably secured by screws, so as to beremovable, and they operate in opposite directions.

The valvebase B has around its under sur- 6 5 face the rim e, and thedisk Ofits within such rim 0 and tightly against the surface of thevalve-base B, and said parts are connected together by the screw orequivalent device,- which will permit of their being turned one upon theother in shifting the position of the valves in relation to the pipes DE. There is a pin, 3, in the circumference of the disk O,

and a portion .or about one-half of the circumference of the rim 6 iscut away, forming 7 a notch in which the pin 3 moves to limit thehalf-revolution of the bulb A and valve-base B. There are tubes 1 gprojecting from the disk 0, to which the tubes D E are connected.

The sides of the bulb A may be marked 8 with the words Inject andExhaust, accompanied with arrows to denote the direc-- tion of flow ofthe liquid, and in the position shown in Fig. 1 the pump is set toexhaust from the stomach or other place and discharge 8 through the pipeE. By forcing the air from the bulb A through the tube E a partialvacuum is formed, which, upon releasing the bulb, causes the liquid toHow through tube D into the bulb A, and the liquid is ejected go throughthe tube E by squeezing the bulb. If now the bulb A and valvebase B aregiven a half-revolution, bringing the valve 0 over the tubes and E andthe valve (1 over the tubes 9 and D, the position and operations arereversed and liquid can be drawn from a receptacle through the tube Einto the bulb A, and then forced through the tube D into the stomach.

In place of the bulb A, I might employ a and disk 0, removabl yconnected to each other,

the valves 0 (Z upon the valve-base B, and acting in oppositedirections, the rim 6 upon the disk B, and partially removed to form aslot, the pin 3, to limit the movement of one disk upon the other anddetermine the position of the valves in relation to the tubes,substantially as specified.

2. An exhausting and forcing apparatus hav- 7 ing a valve-base and seatsand valves working in opposite directions, in combination with a .diskand tubes connected therewith, and

means, substantially as specified, for connecting the disk to thevalve-base, so that the relative positions of the tubes and valves canbe reversed, substantially as specified.

Signed by me this 28th day of December, A. D. 1885.

FREDK. A. STOHLM ANN. Witnesses:

" GEO. T. PINGKNEY, \VILLIAM G. Mo'rr.

